M31/M32: Another Spitzer image of the Andromeda Galaxy and its companion


[Spitzer image of M31/M32]

Spitzer image of M31/M32
Investigating Spitzer images of M31, astronomers found evidence for a heavy collision of the Andromeda Galaxy M31 with its small elliptical companion M32, about 210 million years ago.

Spitzer Press Release:
http://sscws1.ipac.caltech.edu/Imagegallery/image.php?image_name=sig06-025

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